![August 29, 1949. First nuclear test in the USSR. Semipalatinsk testing polygon.](/userdata/news_en/2011/news_1259/thumb_m/photo_4312_en.jpg)
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![August 29, 1949. First nuclear test in the USSR. Semipalatinsk testing polygon.](/userdata/news_en/2011/news_1259/thumb_m/photo_4312_en.jpg)
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